STLC1 STMICROELECTRONICS [STMicroelectronics], STLC1 Datasheet - Page 6

• Manufacturer Part Number: STLC1
• Description: LED LAMPS CLUSTER DRIVER
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

STLC1
ELECTRICAL CHARACTERISTICS FOR FEEDBACK AND CONTROL (T
otherwise specified. Typical values are referred at T
Note 1: The device is powered. If only one of the three inputs is enabled (the remaining inputs are shorted to ground), t
required for the OUT voltage to reach the10% of its own steady state value
Note 2: The device is powered. If only one of the three inputs is brought high (the remaining inputs are shorted to ground), T
time required for the current to flow in the enabled LSD
Note 3: The device is powered and at least one input is enabled. If this input is disabled, T
come zero in the previously enabled LSD.
Note 4: Guaranteed by design, not tested in production.
FUNCTIONAL DESCRIPTION
SMPS
The N-channel Power MOSFET is source
grounded, thus it is possible to use any converter
configuration with the power switch connected to
ground. A SEPIC topology (Single Ended Primary
Inductor Current) is shown in
application schematic.
INPUTS PINS
The IC’s inputs are TURN, STOP and TAIL. If all
inputs are disabled, SMPS and most of the
6/16
V
V
V
V
TS-PWM(M)
TS-PWM(H)
Symbol
TS-PWM(L)
V
V
H-SHORT
T
V
T
V
t
t
R
LH(dis)
LH(en)
V
SHDN
F(on)
V
HYST
F(off)
LOUT
REF
(IN)
FB
LL
Lamp Outage Detect
Threshold Voltage
Output Overcurrent
Threshold Voltage
External Voltage
Reference
Internal Band-gap Voltage
Reference (see schematic
diagram)
Device Enabled Lamp
Outage no fault High
Voltage
Device Disabled Lamp
Outage no fault High
Voltage
Lamp Outage fault Low
Voltage
TURN, STOP and TAIL
Input Resistance
Thermal Shutdown
Threshold
Thermal Shutdown
Hysteresis
Time to Fault Indication
ON
Time to Fault Indication
OFF
TS-PWM Low State
Voltage (see table 1)
TS-PWM Mid State
Voltage (see table 1)
TS-PWM High State
Voltage (see table 1)
Parameter
T
T
V
I
V
V
least one input enabled. No fault
condition.
V
V
V
least one input enabled. Fault condition.
V
(see Note 4)
(see Note 4)
REF
J
J
the
TURN
TURN
B+
B+
TURN
B+
B+
=25°C
=25°C
= 9 to 16V, I
= 9 to 16V, I
= 9 to 16V I
= 12V,
= 500 A
= V
= V
= V
typical
STOP
STOP
STOP
Test Conditions
= V
=V
= V
LMP-OUT
LMP-OUT
LMP-OUT
J
=25°C, V
TAIL
TAIL
TAIL
internal control and diagnostic circuitry are not
active. This is done in order to maintain the
stand-by quiescent current at very low values.
When only one of these inputs is put high (e.g
connected to V
begins. First the C
once the voltage on it has reached about 95% of
its steady state value (V
enabled. In order to allow the output to reach the
regulated
corresponding to the input enabled will conduct
= V
= V
= 0V
< 100mA
< -4mA
< -2mA
B+
B+
B+
=14V)
voltage
At
LSD-OFF
At
B+
0.21V
0.98V
is the time required for the current to be-
REF
), a device start-up phase
V
V
Min.
1.15
150
J
1.2
3.6
B+
B+
=-40 to 125°C unless
value
-2
-2
REF
REF
capacitor is charged and,
Typ.
1.24
18.5
REF
200
150
1.3
3.8
1.5
10
60
8
faster,
), the SMPS is
SMPS-ON
0.1V
0.79V
Max.
250
V
V
1.6
1.3
4
B+
B+
REF
LSD-ON
REF
the
is the time
Unit
is the
mV
k
ms
°C
°C
V
V
V
V
V
V
V
V
V
LSD
s